SCALE INSECTS (" COCCID^ ") OF AUSTRALIA. 



35 



When Maskell described this mealy bug he considered it a variety of Riley 

 and Howard's Icerya rosae, described from Florida, U.S.A., upon quite a 

 number of trees and shrubs besides the rose, but Cockerell raised it to the 

 rank of a distinct species. 



30. PalaeocoGcus australis. Cat. Coccidae, p. 21. 



Palaeococcus nudatus, Maskell (Fig. 22). 

 Icerya nudata. Trans. New Zealand Institute, xxviii, p. 405. 

 This mealy bug was found by OllifE in the gardens about Sydney, upon 

 the roots of cosmos, verbena, and other plants, and when sending the speci- 

 mens to Maskell he stated " that the insects were said to be doing very 

 considerable injury." 



Pig. 22.— Palaeococcus nudatut. 



I have never found this mealy bug as a pest in the Sydney gardens, but 

 found it thickly infesting the foliage of a patch of red clover growing at our 

 experiment farm at Wollongbar, near Lismore, though it did not seem to be 

 doing any noticeable damage to the crop. 



The adult female is yellowish red on the front half, with abdominal portion 

 darker red, but the whole surface is so thickly powdered over with mealy 

 secretion that it appears to be snow white; it is a swollen convex insect 



